JPS6014528Y2 - injection button - Google Patents

Description

[Detailed description of the invention] This invention is an improved injection button used in aerosol injection containers and other small packaging containers commonly used in the home. The purpose is to use a compression coil spring to properly maintain mixed injection of contents and so-called injection failure.

Below, the drawings showing the embodiments of the present invention will be explained.
Figure 1 is a cutaway side view of the side hole passage of the injection button.
5 is a horizontal cylindrical portion of the button body 1 with a horizontal hole passage 2 whose outer end is the nozzle face 4; 5 is a vertical cylindrical portion having a vertical hole passage communicating with the horizontal hole; A socket part that can be connected to the stem of the injection container is provided so that it can be fitted and fixed as appropriate.

Reference numeral 6 denotes an enlarged horizontal hole section provided in the front part of the horizontal hole passage 2, which is provided with a constant length from the nozzle face 4 in the direction of the internal passage, and is continuous to the horizontal hole passage 2 via the inner step part 7.

Reference numeral 8 denotes a full compression coil spring of a certain length, which is connected to the enlarged horizontal hole portion 6.
Using a coil spring with an outer diameter smaller than the inner diameter of the rear end, the rear end is forcefully and tightly fitted into the horizontal hole passage 2 or into a specially provided mounting hole 2a to fix it in the horizontal hole passage 2. Passage 2
and the internal hole 9 of the coil spring, and a closing member 10 is attached to the tip of the internal hole 9 to seal it, thereby blocking the passage from the outside.

The closing member 10 has a fitting protrusion 10a on the rear surface that fits into the inner hole 9 of the coil spring 8, and is forcefully and tightly fitted into the tip of the inner hole 9 to fix it. A recess is provided and the tip of the coil spring 8 is fitted and fixed, thereby sealing and blocking the internal hole 9 from the outside.

As a result, when the discharge pressure from inside the container is applied to the internal hole 9 of the coil spring during the injection operation, the coil spring 8 partially expands as shown in FIG. Then, a diffused injection is performed from the nozzle face 4.

When the injection operation is finished, the discharge pressure disappears, so the coil spring immediately returns to its bright state and closes the discharge gap.

When released, the contents are given rotation along the coil direction,
In addition to improving the mixed injection, since the discharge gap is closely formed by the spring action at the end of discharge, one leakage is eliminated, and so-called jet breakage is maintained well.

Further, the closing member 10 may be located within the enlarged lateral hole 6 or may be located outside the enlarged lateral hole 6 and protrude outward from the nozzle face 4.

Furthermore, this closure member 10 may be constructed so as to be in close contact with the nozzle face 4.

For this purpose, the closing member 10 is integral with the fitting protrusion 10b,
An annular flange 10a is provided on the front side, and the rear surface is formed to tightly engage the nozzle face 4 by the pulling force of a spring.

Thereby, it is possible to further effectively maintain injection failure.

Reference numeral 11 denotes a concave groove portion, which is formed at the rear end of the enlarged horizontal hole portion 6 by equally dividing the inner circumferential surface to form a concave groove extending in the axial direction of the passageway.

This makes the contact holding range of the coil spring long, and
This is also to facilitate the generation of discharge gaps.

As described above, the present invention has a structure in which a full compression coil spring with the nozzle face side closed is inserted and fixed in the horizontal hole passage of the button body, and an enlarged horizontal hole opening to the nozzle face is provided on the outside of the tip portion of the coil spring. It has practical value, such as creating a discharge gap between pitches to enable diffused injection without using a nozzle, maintaining good mixed injection, and maintaining good so-called injection breakage due to the spring action at below normal pressure. It is something that has.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view of the injection button;
The figure is an enlarged sectional view of a portion during injection, and FIG. 3 is a side view of another embodiment. 1...Button body, 2...Horizontal passageway, 6
......Enlarged horizontal hole part, 8......Coil spring,
9... Internal hole, 10... Closing member.

Claims (1)

[Scope of utility model registration request] The cylindrical rear end of a full compression coil spring 8 of a certain length is connected to the horizontal hole passage 2 of the button body 1 which has an enlarged horizontal hole 6 connected to the nozzle face 4 on a concentric circle, and the enlarged horizontal hole A closing member 10 is fixed to the tip of the coil tube to close the end of the inner hole 9 of the coil tube. The injection button consists of